Removing null values while printing in yaml format

[Harisabdullah]

No description provided.

[linear]

BE-2226 CLI YAML output should remove `null` entries

For out-of-tier data YAML option should not return any values instead of the current null response.

ipinfo ► ipinfo 8.8.8.8 --yaml
ip: 8.8.8.8
hostname: dns.google
bogon: false
anycast: true
city: Mountain View
region: California
country: US
countryname: United States
countryflag:
emoji: "\\U0001F1FA\\U0001F1F8"
unicode: U+1F1FA U+1F1F8
countrycurrency:
code: USD
symbol: $
continent:
code: NA
name: North America
iseu: false
location: 37.4056,-122.0775
org: AS15169 Google LLC
postal: "94043"
timezone: America/Los_Angeles
asn: null
company: null
carrier: null
privacy: null
abuse: null
domains: null

Preferred response:

ipinfo ► ipinfo 8.8.8.8 --yaml
ip: 8.8.8.8
hostname: dns.google
bogon: false
anycast: true
city: Mountain View
region: California
country: US
countryname: United States
countryflag:
emoji: "\\U0001F1FA\\U0001F1F8"
unicode: U+1F1FA U+1F1F8
countrycurrency:
code: USD
symbol: $
continent:
code: NA
name: North America
iseu: false
location: 37.4056,-122.0775
org: AS15169 Google LLC
postal: "94043"
timezone: America/Los_Angeles

This will match our normal response:

ipinfo ► ipinfo 8.8.8.8
Core

- IP 8.8.8.8
- Anycast true
- Hostname dns.google
- City Mountain View
- Region California
- Country United States (US)
- Currency USD ($)
- Location 37.4056,-122.0775
- Organization AS15169 Google LLC
- Postal 94043
- Timezone America/Los_Angeles

ipinfo ► ipinfo 8.8.8.8 --json
{
"ip": "8.8.8.8",
"hostname": "dns.google",
"anycast": true,
"city": "Mountain View",
"region": "California",
"country": "US",
"country_name": "United States",
"country_flag": {
"emoji": "🇺🇸",
"unicode": "U+1F1FA U+1F1F8"
},
"country_currency": {
"code": "USD",
"symbol": "$"
},
"continent": {
"code": "NA",
"name": "North America"
},
"loc": "37.4056,-122.0775",
"org": "AS15169 Google LLC",
"postal": "94043",
"timezone": "America/Los_Angeles"
}

[UmanShahzad]

We need to update the version across the codebase here and push that as a tag. @Harisabdullah / @abu-usama can you handle it?

[UmanShahzad]

Also don't forget the CHANGELOG entry

[abu-usama]

@UmanShahzad Its done. Just needed update in user agent and change log. Pushed new tag v2.9.4.